Question

Q7. 3/4 of a number is 12 the number is
9
16
12
18
​

Answer 1

Answer

The correct answer is option 2 i.e 16

$let \: the \: number \: be \: x \: \\ so \: \: \frac{3}{4} of \: a \: number \: will \: be \: x \: which \: will \: be \: equal \: to \: 12 \\ \\ acording \: to \: the \: problem \: \: \\ \\ \frac{3}{4} \times x \: = 12 \\ \\ \frac{3x}{4} = 12 \\ \\ (over \: here \: we \: will \: do \: cros \\ s \: multiplication) \\ 3x \: = 12 \times 4 \\ 3x = 48 \\ therefore \: \: x \: = \frac{48}{3} \\ \\ x = 16 \:$

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